https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90886
--- Comment #3 from Joe <joe at freakyacres dot com> ---
Changing i to 127 produces following assembly...
volatile unsigned char x;
int main() {
while (1) {
for (unsigned char i = 0 ; i < 127 ; i++) {
x = i;
}
}
}
00000090 <main>:
90: 80 e0 ldi r24, 0x00 ; 0
92: 80 93 00 01 sts 0x0100, r24 ; 0x800100 <_edata>
96: 8f 5f subi r24, 0xFF ; 255
98: 8f 37 cpi r24, 0x7F ; 127
9a: d1 f3 breq .-12 ; 0x90 <main>
9c: fa cf rjmp .-12 ; 0x92 <main+0x2>
0000009e <_exit>:
9e: f8 94 cli
000000a0 <__stop_program>:
a0: ff cf rjmp .-2 ; 0xa0 <__stop_program>
